Package Size – What You Need to Know for Same Day Delivery

When you send a parcel, the size you choose can make or break the delivery experience. Too big and you pay extra, too small and the item might get damaged. Below you’ll find quick, practical tips to measure, pack, and choose the right size for fast, hassle‑free shipping.

How to Measure Your Parcel

Grab a tape measure and follow these three steps:

• Length: Measure the longest side of the item.
• Width: Measure the side that sits next to the length.
• Height: Measure the side that sticks up.

Write the numbers down in the order L × W × H (for example, 30 cm × 20 cm × 10 cm). Most couriers, including Same Day Express Delivery, ask for this format when you book online.

Tip: Add an extra centimetre or two on each side for padding material. That extra space protects the item without blowing up the size category.

Common Size Limits and Cost Impacts

Most UK couriers work with three basic size groups:

• Small: Up to 25 cm on any side. Ideal for letters, documents, and small gadgets.
• Medium: Up to 50 cm on any side. Good for books, clothing, and medium‑sized electronics.
• Large: Anything over 50 cm but under the maximum allowed (usually 120 cm total girth). Used for furniture parts, bulk orders, and bulky items.

If your parcel falls into the large category, expect a higher fee. Some couriers also charge by weight plus size, so shrinking the dimensions can save you both money and time.

Another rule of thumb: bulky but light items (like a pillow) often cost more than a compact, heavy box of the same weight. Packing tightly and using a smaller box can cut those extra charges.

Same Day Express Delivery offers a free size‑check tool on the booking page. Just pop in your measurements, and the system tells you which size tier you’re in and the exact price.

Finally, remember that oversized parcels sometimes need special handling. That can add a surcharge and might limit the number of delivery slots available. If you can, split a big order into two smaller boxes – you’ll get faster delivery and a lower bill.

By measuring accurately, choosing the right box, and staying within standard size limits, you keep your shipments quick, cheap, and safe. Got a tricky item? Call our support team and they’ll recommend the best packaging size for your specific needs.